This development/breakout board (HCDVBD0032) is based around the ST Microelectronics STM8S105K4 microcontroller. STM8 microcontrollers are an ultra low cost solution to embedded control. This development board provides convenient access to the devices I/O pins via standard 2.54mm pitch headers. Besides providing access to most of the microcontrollers I/O, there is additionally a microUSB connector for powering from a USB port, and a standard ST SWIM programming/emulation header that allows for programming or debugging using a compatible programmer such as our low cost ST-Link compatible USB programmer (HCDVBD0016). An on-board 3.3V regulator provides power to the board and is supplied via the 5V USB or 5V header pins. The ST tool chain (STVD) is available as a free download from the ST website and is fully compatible with this board. There are also additional third party tools such as the Cosmos ANSI C compiler (8K limited) and the SDCC (Small Device C Compiler) which can be downloaded for free. Links to these tools are provided at the bottom of this post.

A free 8K limited version of the Cosmos C compiler which is supported by the STVD development environment is available for download here: http://www.cosmic-software.com/eval_kit ... m_eval.exe
We recommend installing the Cosmos C compiler before installing the STVD development environment.

Alternatively SDCC (Small Device C Compiler) is a free compiler that is compatible with the STM8 microcontrollers and can be downloaded here: http://sdcc.sourceforge.net/

FAQ:

What is the jumper for?

The jumper provides the option of linking the on-board (user) LED to either port D pin 6 or pin 7.

When trying to use the debug feature in the STVD development environment I get the following error: gdi-error [40201]: can't access configuration database

Go to C:\Program Files (x86)\STMicroelectronics\st_toolset\stvd\dao\ and install the ST Toolset.msi

If you are running 64 bit versions of Windows 8/10 and installing the toolset above did not resolve the problem open up a DOS command prompt in admin mode and issue the following two commands:

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